Tray Replacement vs. Tray Repair: How to Decide During Turnaround Planning

Repair or replace is one of the first calls to make when tray work lands in a turnaround scope. The decision rests on three things: 

1. The condition of the existing trays
2. The extent of the damage
3. What the column’s design and operating requirements demand

In this short article, we go over that. 

When Repair Makes Sense

Repair fits when damage is limited and the affected components can be restored to the required condition. Bent valve legs on a handful of valves, a damaged downcomer panel, loose or missing hardware on an otherwise sound deck. If the deck metal is intact, levelness can be held, and the repaired tray will meet the original specification, repair saves money and schedule.

When Replacement Is the Answer

Replacement becomes necessary when trays show significant corrosion, deformation, missing components, or damage repair cannot adequately address. Thinned deck metal does not repair. A warped tray that will not hold level does not repair. Widespread valve loss across multiple decks means the metallurgy or the operation is attacking the trays, and patching them buys one run at best. If the column is also being pushed for more capacity, replacement is the opening to upgrade tray type instead of restoring the original limitation.

The Call Is Made by Inspection

Inspection findings and engineering requirements drive the decision. Thickness readings, levelness checks, and a deck-by-deck condition survey tell you what you have. Applicable specifications and qualified personnel tell you what passes.

Plan It Before the Column Opens

The expensive version of this decision happens mid-outage, when an opened manway reveals damage nobody scoped and replacement trays carry a lead time the schedule cannot absorb. Review operating history, prior inspection reports, and any performance drift before the turnaround. Identifying likely tray issues early means labor, materials, and scope are planned instead of improvised. For columns with known risk, having replacement hardware staged before the manway opens is cheap insurance against a schedule-killing discovery.

What does this mean for you?

Limited, restorable damage: repair. Corrosion, deformation, missing components, or any damage that compromises the specification: replace. Let inspection results make the call, and make as much of the decision as possible before the column opens.

If you are unsure whether your tower needs replacement or repair, our team can provide the inspection. Get in touch today for more information. 

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